# BMS vs BAT

The clearest difference is rating: BMS at 5.0 against BAT's 1.0. BMS also leads on ads (none vs shown) and review sentiment (20% vs 0%). BAT's advantage is ratings volume (3 vs 1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BMS holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 20% of BMS's written reviews are positive against 0% of BAT's.

BMS ships an update every 2 months, BAT every 3 months. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | BMS | BAT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bms-tool/id6471949475/reviews)** | [1.0 (3 ratings)](https://appshunter.io/ios/app/bat-bms-pro/id6758682329/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **20.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Ad-supported |
| Size | 40 MB | 18 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [秀丽 唐](https://appshunter.io/developer/1715570419) | [Mouad Bousbaa](https://appshunter.io/developer/1868764561) |

## What reviewers say

### BMS

[App page](https://appshunter.io/ios/app/bms-tool/id6471949475)

Monitor and manage your device's battery health with real-time data, historical records, and customizable alerts for over-charge, over-discharge, and temperature. Connect locally via Bluetooth or remotely via Wi-Fi to track battery status, cell performance, and potential issues.

**Highlights:** Real-time battery data (current, voltage, SOC, SOH), Cell-level monitoring, Historical alarm and protection records, Customizable warning values, Bluetooth and Wi-Fi connectivity, Device sharing and management

**In-app purchases:** none


### BAT

[App page](https://appshunter.io/ios/app/bat-bms-pro/id6758682329)

Monitor and manage your lithium batteries in real-time with instant access to battery health, charging status, voltage, current, and temperature. This app provides advanced diagnostics and a clear interface for various applications like RVs, solar systems, and EVs.

**Highlights:** Real-time battery monitoring, Battery dashboard (SOC, SOH, voltage, current), Individual cell monitoring, Temperature monitoring, Advanced diagnostics and fault detection, Runtime estimator, Clean and professional interface

**In-app purchases:** none


## Frequently asked questions

### Is BMS free?

BMS is free to download, with no in-app purchases.

### Is BAT free?

BAT is free to download, with no in-app purchases.

### Which has better reviews, BMS or BAT?

BMS is rated higher. BMS averages 5.0 out of 5 from 1 ratings, while BAT averages 1.0 from 3 ratings.

### Do BMS or BAT have ads?

BAT shows ads; BMS does not.

### Which is updated more often, BMS or BAT?

BMS ships an update every 2 months, and BAT every 3 months. Most recently, BMS was updated on October 10, 2026 and BAT on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*